Landsat7 was launched in 1999. It contains seven spectral bands andpanchromatic band wide swath width (185 km) with 15-meter, 30-meter, 60-meter, and 80-meter . It has a 705km sun-synchronous orbit with a 16 day repeat cycle and contains a nadir-pointing instrument (ETM+ sensor). ETM+ data were compiled through NASA's Commercial Remote Sensing Program; this program is cooperative effort between NASA and the commercial remote sensing community to provide with access to quality-screened, high-resolution satellite images with global over the Earth's land masses. The resulting Landsat Enhanced Thematic Mapper (ETM+) data set contains orthorectified ETM+ sensor data from the Landsat-7 satellite. the ETM+ images most closely meeting a specific set of criteria, including acquisition , cloud percentage, data quality parameters, and best available phenology, were for the collection. The Landsat ETM+ data were provided by the USGS and through a NASA contract with Earth Satellite Corporation, Rockville, , and are part of NASA's Scientific Data Purchase program, developed in response the President's Space Policy. Spectral Resolution (�), Band Spatial Resolution Band 1: 0.450 - 0.515 (Blue), 30 meters Band 2: 0.525 - 0.605 (Green), 30 meters Band 3: 0.630 - 0.690 (Red), 30 meters Band 4: 0.760 - 0.900 (Near IR), 30 meters Band 5: 1.550 - 1.750 (Mid IR), 30 meters Band 6: 10.40 - 12.5 (Thermal), 60 meters Band 7: 2.080 - 2.35 (Mid IR), 30 meters Band 8: 0.52 - 0.92 (Panchromatic), 15 meters GeoTIFF image data is delivered as an 8-bit string of unsigned integers. Landsat7 was launched in 1999. It contains seven spectral bands andpanchromatic band wide swath width (185 km) with 15-meter, 30-meter, 60-meter, and 80-meter . It has a 705km sun-synchronous orbit with a 16 day repeat cycle and contains a nadir-pointing instrument (ETM+ sensor).